
For Reference Only
Part Number | KA3843BD |
OEMstron Part # | KA3843BD |
Manufacturer | ON Semiconductor |
Category | Semiconductors › Power Management ICs › Voltage Regulators - DC DC Switching Controllers |
Description | IC REG CTRLR 14-SOP |
Lifecycle | Obsolete |
RoHS | No RoHS Information |
EDA/CAD Models | KA3843BD PCB Footprint and Symbol |
Warehouses | USA, Europe, China, Hong Kong SAR |
Estimated Delivery | Mar 21 - Mar 26 (Choose Expedited Shipping) |
Warranty | Up to 1 year [Limited-Warranty]* |
Payment | ![]() |
Shipping | ![]() |
KA3843BD Specifications
Part Number | KA3843BD | |
Brand | ON Semiconductor | |
Lifecycle | Obsolete | |
RoHS | No RoHS Information | |
Product Line | Semiconductors | |
Category | Power Management ICs | |
Subcategory | Voltage Regulators - DC DC Switching Controllers | |
Manufacturer | ON Semiconductor | |
Series | - | |
Output Type | Transistor Driver | |
Function | - | |
Output Configuration | Positive | |
Topology | - | |
Number of Outputs | 1 | |
Output Phases | 1 | |
Voltage - Supply (Vcc/Vdd) | 7.6V ~ 30V | |
Frequency - Switching | Up to 500kHz | |
Duty Cycle (Max) | 97% | |
Synchronous Rectifier | Yes | |
Clock Sync | No | |
Serial Interfaces | - | |
Control Features | - | |
Operating Temperature | 0°C ~ 70°C (TA) | |
Package / Case | 14-SOIC (0.154", 3.90mm Width) | |
Supplier Device Package | 14-SOIC |
KA3843BD Documents

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Global Supply Chains - Reliable and Authorized Distributor Resources
Part Number | Description | Stock |
KA3843BD D# KA3843BD ON Semiconductor |
SWITCHING CONTROLLER, CURRENT-MODE, 1A, 500KHZ SWITCHING FREQ-MAX, BIPOLAR, PDSO14 - Bulk (Alt: KA3843BD) RoHS: Not Compliant
|
Americas - 4760 |
KA3843BDTF D# KA3843BDTF ON Semiconductor |
Regulator Positive Output DC-DC Controller IC 14-SOP - Bulk (Alt: KA3843BDTF) RoHS: Compliant
|
Americas - 5750 |
Part Number | Description | Stock |
KA3843BD Fairchild Semiconductor Corporation |
Current Mode PWM Controller 1A 14-Pin SOIC N Rail |
Contact Us |
KA3843BDTF Fairchild Semiconductor Corporation |
N/A 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO14 SOP-14 |
5750 |
Part Number | Description | Stock |
KA3843BD D# 2156-KA3843BD-FS-ND Rochester Electronics LLC |
SWITCHING CONTROLLER |
4760 In Stock |
KA3843BDTF D# 2156-KA3843BDTF-FSTR-ND Rochester Electronics LLC |
SWITCHING CONTROLLER |
5750 In Stock |
Part Number | Description | Stock |
KA3843BDTF D# KA3843BDTF Samsung Electro-Mechanics |
Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct |
1423 |
Part Number | Description | Stock |
KA3843BD Fairchild Semiconductor Corporation |
In stock shipping within 2days |
940 |
Part Number | Description | Stock |
KA3843BD Rochester Electronics LLC |
OEM/CM QUOTES ONLY | NO BROKERS |
5522 |
KA3843BDTF Fairchild Semiconductor Corporation |
OEM/CM QUOTES ONLY | NO BROKERS |
34800 |
Part Number | Description | Stock |
KA3843BDTF Fairchild Semiconductor Corporation |
OEM/CM Immediate delivery |
5750 |
KA3843BD Fairchild Semiconductor Corporation |
OEM/CM Immediate delivery |
4760 |
Part Number | Description | Stock |
KA3843BD D# NS-KA3843BD Fairchild Semiconductor Corporation |
OEM/CM ONLY |
1224 |
Part Number | Description | Stock |
KA3843BD Fairchild Semiconductor Corporation |
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14 RoHS: Compliant
|
4760 |
KA3843BDTF Fairchild Semiconductor Corporation |
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14 RoHS: Compliant
|
5750 |
Part Number | Description | Stock |
KA3843BDTF Fairchild Semiconductor Corporation |
OEM/CM ONLY |
30016 |
Part Number | Description | Stock |
KA3843BD Fairchild Semiconductor Corporation |
IN stock Immediate delivery |
4775 |
KA3843BDTF Fairchild Semiconductor Corporation |
IN stock Immediate delivery |
5765 |
Part Number | Description | Stock |
KA3843BD Fairchild Semiconductor Corporation |
shipping today |
1402 |
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100 | $ 0.4049 | $ 40.4900 |
500 | $ 0.4049 | $ 202.4500 |
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